Puzzlerium Tour: Masyu

 

Rules: Draw a single loop that consists of horizontal and vertical paths through the centres of cells, and does not intersect itself or enter the same cell more than once, and has to pass through all of the circles. The loop must pass straight through the cells with white circles, making a turn in at least one of the cells immediately before or after visiting each white circle. The loop must make a turn in all the black circles, but must go straight in both cells immediately before and after visiting each black circle.